dchip.cpVect

Members

Aliases

cpv alias cpv = cpVect: Convenience constructor for cpVect structs.

Functions

cpMat2x2New cpMat2x2 cpMat2x2New(cpFloat a, cpFloat b, cpFloat c, cpFloat d): 2x2 matrix type used for tensors and such. Create a 2x2 matrix.
cpMat2x2Transform cpVect cpMat2x2Transform(cpMat2x2 m, cpVect v): Transform a 2x2 matrix.
cpvadd cpVect cpvadd(const cpVect v1, const cpVect v2): Add two vectors
cpvclamp cpVect cpvclamp(const cpVect v, const cpFloat len): Clamp v to length len.
cpvcross cpFloat cpvcross(const cpVect v1, const cpVect v2): 2D vector cross product analog. The cross product of 2D vectors results in a 3D vector with only a z component. This function returns the magnitude of the z value.
cpvdist cpFloat cpvdist(const cpVect v1, const cpVect v2): Returns the distance between v1 and v2.
cpvdistsq cpFloat cpvdistsq(const cpVect v1, const cpVect v2): Returns the squared distance between v1 and v2. Faster than cpvdist() when you only need to compare distances.
cpvdot cpFloat cpvdot(const cpVect v1, const cpVect v2): Vector dot product.
cpveql cpBool cpveql(const cpVect v1, const cpVect v2): Check if two vectors are equal. (Be careful when comparing floating point numbers!)
cpvforangle cpVect cpvforangle(const cpFloat a): Returns the unit length vector for the given angle (in radians).
cpvlength cpFloat cpvlength(const cpVect v): Returns the length of v.
cpvlengthsq cpFloat cpvlengthsq(const cpVect v): Returns the squared length of v. Faster than cpvlength() when you only need to compare lengths.
cpvlerp cpVect cpvlerp(const cpVect v1, const cpVect v2, const cpFloat t): Linearly interpolate between v1 and v2.
cpvlerpconst cpVect cpvlerpconst(cpVect v1, cpVect v2, cpFloat d): Linearly interpolate between v1 towards v2 by distance d.
cpvmult cpVect cpvmult(const cpVect v, const cpFloat s): Scalar multiplication.
cpvnear cpBool cpvnear(const cpVect v1, const cpVect v2, const cpFloat dist): Returns true if the distance between v1 and v2 is less than dist.
cpvneg cpVect cpvneg(const cpVect v): Negate a vector.
cpvnormalize cpVect cpvnormalize(const cpVect v): Returns a normalized copy of v.
cpvnormalize_safe cpVect cpvnormalize_safe(const cpVect v): @deprecated Just an alias for cpvnormalize() now.
cpvperp cpVect cpvperp(const cpVect v): Returns a perpendicular vector. (90 degree rotation)
cpvproject cpVect cpvproject(const cpVect v1, const cpVect v2): Returns the vector projection of v1 onto v2.
cpvrotate cpVect cpvrotate(const cpVect v1, const cpVect v2): Uses complex number multiplication to rotate v1 by v2. Scaling will occur if v1 is not a unit vector.
cpvrperp cpVect cpvrperp(const cpVect v): Returns a perpendicular vector. (-90 degree rotation)
cpvslerp cpVect cpvslerp(const cpVect v1, const cpVect v2, const cpFloat t): Spherical linearly interpolate between v1 and v2.
cpvslerpconst cpVect cpvslerpconst(const cpVect v1, const cpVect v2, const cpFloat a): Spherical linearly interpolate between v1 towards v2 by no more than angle a radians
cpvstr string cpvstr(const cpVect v): Returns a string representation of v. Intended mostly for debugging purposes and not production use. Note: The string points to a static local and is reset every time the function is called. If you want to print more than one vector you will have to split up your printing onto separate lines.
cpvsub cpVect cpvsub(const cpVect v1, const cpVect v2): Subtract two vectors.
cpvtoangle cpFloat cpvtoangle(const cpVect v): Returns the angular direction v is pointing in (in radians).
cpvunrotate cpVect cpvunrotate(const cpVect v1, const cpVect v2): Inverse of cpvrotate().

Variables

cpvzero cpVect cpvzero;: Chipmunk's 2D vector type along with a handy 2D vector math lib. Constant for the zero vector.

Meta

Source

See Source File